/* รอบ 60: คะแนน (/school/grades) — prefix sgr-
   - จอ: ตารางนักเรียน × วิชา เลื่อนในกรอบ หัวตาราง + ลำดับ/ชื่อ ติดอยู่กับที่, ช่องกรอกเล็กกลาง
   - มือถือ: โหมด "ทีละวิชา" (.sgr-clist) ช่องใหญ่ ไม่ต้องเลื่อนแนวนอน, ปุ่มบันทึกติดล่างจอ
   - พิมพ์: .sgr-print (ScoreSheetPrint.razor) แสดงเฉพาะ html[data-print="score"] → A4 แนวตั้ง (@page sgr)
   ใช้ตัวแปรสีใน :root (โหมดมืดทับให้เองใน dark.css) */

.sgr-print { display: none; }

@media screen {
  /* ---------- หัว / ตัวกรอง ---------- */
  .sgr-tools { flex-wrap: wrap; }
  .sgr-print-btn { display: inline-flex; align-items: center; gap: 6px; }
  .sgr-bar { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: flex-end; }
  .sgr-filter { display: flex; flex-direction: column; gap: 4px; min-width: 0; font-size: .82rem; color: var(--muted); }
  .sgr-filter select { min-width: 0; max-width: 100%; }
  .sgr-f-year select { width: 150px; }
  .sgr-f-room select { width: 240px; }
  .sgr-f-period select { width: 230px; }

  .sgr-empty { padding: 28px 12px; text-align: center; color: var(--muted); }
  .sgr-empty p { margin: 0 0 8px; }
  .sgr-empty .btn { margin-top: 4px; }

  /* ---------- หัวใบคะแนน ---------- */
  .sgr-pane { gap: 8px; }
  .sgr-shead { display: flex; align-items: flex-start; gap: 8px 12px; flex-wrap: wrap; flex: none; min-width: 0; }
  .sgr-stitle { flex: 1 1 220px; min-width: 0; }
  .sgr-stitle h2 { margin: 0; font-size: 1.08rem; overflow-wrap: anywhere; }
  .sgr-stitle p { margin: 2px 0 0; }
  .sgr-mode { flex: none; }
  .sgr-mode.on { border-color: var(--brand); color: var(--brand-strong); background: var(--brand-tint); }
  .sgr-hint { flex: none; margin: 0; padding: 8px 12px; border-radius: var(--radius-sm); background: var(--warn-soft); color: var(--ink); font-size: .86rem; }
  .sgr-keys { flex: none; margin: 0; }

  /* ---------- ตาราง (คอม) ---------- */
  .sgr-wrap { max-width: 100%; overflow: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; border: 1px solid var(--line); border-radius: var(--radius-sm); }
  /* ไม่ใช้ระยะขอบติดลบของ .fit-pane > .fit-scroll — คอลัมน์ลำดับ/ชื่อติดซ้ายพอดีขอบกรอบ */
  .sgr-pane > .sgr-wrap.fit-scroll { margin: 0; padding: 0; }
  .sgr-mx { border-collapse: separate; border-spacing: 0; width: max-content; min-width: 100%; font-size: .9rem; }
  .sgr-mx th, .sgr-mx td { padding: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); vertical-align: middle; background: var(--surface); }
  .sgr-mx thead th {
    position: sticky; top: 0; z-index: 2; padding: 6px 4px; font-size: .78rem; font-weight: 700; color: var(--muted);
    text-align: center; line-height: 1.2; background: var(--chip);
  }
  .sgr-mx .sgr-no { position: sticky; left: 0; z-index: 1; width: 38px; min-width: 38px; text-align: center; color: var(--muted); font-size: .8rem; }
  .sgr-mx .sgr-name {
    position: sticky; left: 38px; z-index: 1; min-width: 170px; max-width: 230px; padding: 0 8px; text-align: left; font-weight: 500;
    box-shadow: 2px 0 0 var(--line);
  }
  .sgr-mx thead .sgr-no, .sgr-mx thead .sgr-name { z-index: 3; }
  .sgr-nm { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .sgr-mx .sgr-sj { width: 58px; min-width: 58px; max-width: 74px; }
  .sgr-sjn { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
  .sgr-sj small { display: block; font-weight: 400; }
  .sgr-sj.extra { color: var(--warn-text, #7a5300); font-style: italic; }
  /* รอบ 59b-2: ครูประจำวิชา — หัวคอลัมน์วิชาที่ตัวเองกรอกได้ */
  .sgr-mx thead th.sgr-sj.mine { background: var(--brand-tint); color: var(--brand-strong); box-shadow: inset 0 -2px 0 var(--brand); }
  .sgr-subj-hint { overflow-wrap: anywhere; }
  .sgr-mx .sgr-t { width: 62px; min-width: 56px; padding: 0 6px; text-align: center; font-variant-numeric: tabular-nums; background: var(--brand-tint); }
  .sgr-mx thead .sgr-t { background: var(--chip); }
  .sgr-mx .sgr-avg { font-weight: 700; }
  .sgr-mx .sgr-band { font-weight: 700; white-space: nowrap; }
  .sgr-mx .sgr-rank { font-weight: 700; color: var(--brand-strong); }
  .sgr-mx .sgr-nt { min-width: 170px; padding: 0 4px; }
  .sgr-mx tbody tr:hover > * { background: var(--brand-tint); }
  .sgr-mx tbody tr:focus-within > * { background: color-mix(in srgb, var(--brand) 7%, var(--surface)); }
  .sgr-mx .sgr-c { text-align: center; }
  /* ย้ายออก/ออกแล้ว: ดูอย่างเดียว สีจาง */
  .sgr-former { display: inline-block; margin-left: 6px; padding: 0 6px; border-radius: 999px; background: var(--chip); color: var(--muted); font-size: .7rem; font-weight: 700; white-space: nowrap; vertical-align: middle; }
  .sgr-mx .sgr-name .sgr-nm { display: inline-block; max-width: 100%; vertical-align: middle; }
  .sgr-mx .sgr-name:has(.sgr-former) .sgr-nm { max-width: calc(100% - 64px); }
  .sgr-mx tr.sgr-former-row > * { color: var(--muted); }
  .sgr-crow.former { opacity: .7; }
  .sgr-crow.former .sgr-former { margin-left: 0; margin-right: 6px; }
  .sgr-mx .sgr-c > span { display: block; padding: 6px 4px; }

  .sgr-in {
    display: block; width: 100%; min-width: 0; height: 36px; margin: 0; padding: 0 4px; border: 0; border-radius: 0;
    background: transparent; color: var(--ink); font: inherit; font-size: .98rem; font-weight: 600; text-align: center;
    font-variant-numeric: tabular-nums; box-shadow: none; outline: none;
  }
  .sgr-in:focus { background: var(--surface); box-shadow: inset 0 0 0 2px var(--brand); }
  .sgr-c.dirty, .sgr-c.dirty .sgr-in { background: color-mix(in srgb, var(--warn-soft) 80%, var(--surface)); }
  .sgr-c.bad, .sgr-c.bad .sgr-in, .sgr-cin.bad { background: var(--danger-soft); color: var(--danger); }
  .sgr-c.bad .sgr-in:focus, .sgr-cin.bad:focus { box-shadow: inset 0 0 0 2px var(--danger); }
  /* ขาดมีเหตุผล "ລ" (ไม่นับในเฉลี่ย) */
  .sgr-c.exc, .sgr-c.exc .sgr-in, .sgr-cin.exc, .sgr-cval.exc { color: var(--muted); font-style: italic; font-weight: 500; }
  .sgr-c.exc:not(.dirty) { background: var(--chip); }
  .sgr-exhint { flex: none; margin: 0; }
  .sgr-note-in { width: 100%; min-width: 0; height: 32px; padding: 0 6px; border: 1px solid transparent; border-radius: 6px; background: transparent; font-size: .86rem; }
  .sgr-note-in:hover { border-color: var(--line); }
  .sgr-note-in:focus { border-color: var(--brand); background: var(--surface); outline: none; }
  .sgr-note-in.dirty { background: color-mix(in srgb, var(--warn-soft) 80%, var(--surface)); }

  /* ---------- โหมดทีละวิชา ---------- */
  .sgr-cpick { display: flex; align-items: stretch; gap: 6px; flex: none; }
  .sgr-cpick select { flex: 1 1 auto; min-width: 0; font-weight: 700; }
  .sgr-nbtn { flex: none; min-width: 44px; min-height: 44px; padding: 0 10px; font-size: 1.25rem; line-height: 1; }
  .sgr-clist { display: flex; flex-direction: column; }
  .sgr-crow { display: grid; grid-template-columns: 30px minmax(0, 1fr) 132px; align-items: center; gap: 8px; padding: 6px 2px; border-bottom: 1px solid var(--line); min-width: 0; }
  .sgr-crow.note { grid-template-columns: 30px minmax(0, 1fr); }
  .sgr-crow.note .sgr-note-in, .sgr-crow.note .sgr-cnote { grid-column: 1 / -1; }
  .sgr-crow:last-child { border-bottom: 0; }
  .sgr-cno { color: var(--muted); font-size: .82rem; text-align: center; }
  .sgr-cname { display: flex; flex-direction: column; min-width: 0; }
  .sgr-cname strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
  .sgr-cname small { min-height: 1em; font-size: .76rem; }
  .sgr-cin {
    width: 100%; height: 46px; padding: 0 6px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--surface);
    font: inherit; font-size: 1.25rem; font-weight: 700; text-align: center; font-variant-numeric: tabular-nums;
  }
  .sgr-cin:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); outline: none; }
  .sgr-cin.dirty { background: color-mix(in srgb, var(--warn-soft) 80%, var(--surface)); }
  .sgr-cbox { display: flex; align-items: center; gap: 4px; min-width: 0; }
  .sgr-cbox .sgr-cin { flex: 1 1 auto; min-width: 0; }
  .sgr-exbtn {
    flex: none; width: 40px; height: 46px; padding: 0; border: 1.5px solid var(--line); border-radius: 12px;
    background: var(--surface); color: var(--muted); font: inherit; font-size: 1.05rem; font-weight: 700; cursor: pointer;
    -webkit-tap-highlight-color: transparent; touch-action: manipulation;
  }
  .sgr-exbtn.on { background: var(--muted); border-color: var(--muted); color: var(--surface); }
  .sgr-exbtn:disabled { opacity: .55; cursor: default; }
  .sgr-cval { font-size: 1.15rem; font-weight: 700; text-align: center; }
  .sgr-crow.note .sgr-note-in { height: 40px; border-color: var(--line); }

  /* ---------- แถบบันทึก ---------- */
  .sgr-foot {
    flex: none; display: flex; align-items: center; justify-content: flex-end; gap: 8px 12px; flex-wrap: wrap;
    padding-top: 8px; border-top: 1px solid var(--line); background: var(--surface);
  }
  .sgr-dirty, .sgr-bad, .sgr-saved { margin-right: auto; font-size: .86rem; font-weight: 600; }
  .sgr-dirty { color: var(--warn-text, #7a5300); }
  .sgr-bad { color: var(--danger); }
  .sgr-save { min-width: 160px; min-height: 44px; }

  /* ---------- หน้าต่างวิชา / ตั้งค่า ---------- */
  .sgr-slist { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-sm); max-height: 46vh; overflow: auto; }
  .sgr-slist > p { margin: 0; padding: 12px; }
  .sgr-srow { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto auto; align-items: center; gap: 8px; padding: 6px 8px; border-bottom: 1px solid var(--line); }
  .sgr-srow:last-child { border-bottom: 0; }
  .sgr-sno { color: var(--muted); text-align: center; font-size: .82rem; }
  .sgr-sname { min-width: 0; overflow-wrap: anywhere; font-weight: 600; }
  .sgr-new { margin-left: 6px; padding: 0 6px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-strong); font-size: .72rem; font-weight: 700; }
  .sgr-smax { display: flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--muted); }
  .sgr-smax input { width: 64px; text-align: center; }
  .sgr-sbtns { display: flex; gap: 2px; }
  .sgr-sbtns .btn { min-width: 34px; padding-left: 6px; padding-right: 6px; }
  .sgr-sdel { color: var(--danger); }
  .sgr-sadd { display: flex; gap: 8px; min-width: 0; }
  .sgr-sadd > select, .sgr-sadd > input { flex: 1 1 auto; min-width: 0; }
  .sgr-sadd > .btn { flex: none; }
  .sgr-copy { display: flex; flex-direction: column; gap: 6px; padding-top: 8px; border-top: 1px dashed var(--line); }
  .sgr-fs { margin: 0; padding: 10px 12px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); display: flex; flex-direction: column; gap: 10px; min-width: 0; }
  .sgr-fs legend { padding: 0 6px; font-weight: 700; font-size: .9rem; }
  .sgr-fs p { margin: 0; }
  .sgr-btpl { display: flex; flex-wrap: wrap; gap: 6px; }
  .sgr-blist { display: flex; flex-direction: column; gap: 6px; }
  .sgr-brow { display: grid; grid-template-columns: 90px minmax(0, 1fr) auto; gap: 8px; align-items: center; }
  .sgr-brow input { min-width: 0; width: 100%; }
  .sgr-brow input.num { text-align: center; }
  .sgr-bhead { font-size: .78rem; color: var(--muted); font-weight: 600; }
  .sgr-bprev { margin: 0; padding: 8px 12px 8px 28px; border-radius: var(--radius-sm); background: var(--chip); font-size: .84rem; }
  .sgr-2col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
}

/* จอคอม: ตารางเต็มความสูง เลื่อนในกรอบ */
@media screen and (min-width: 1025px) {
  .sgr-body > .sgr-pane { flex: 1 1 auto; min-height: 0; overflow: hidden; }
}

/* แท็บเล็ต/มือถือ: ตารางสูงจำกัด เลื่อนในกรอบของตัวเอง */
@media screen and (max-width: 1024px) {
  .sgr-wrap { max-height: 70vh; }
}

@media screen and (max-width: 760px) {
  .sgr-tools { width: 100%; }
  .sgr-tools > .btn { flex: 1 1 auto; }
  .sgr-bar { gap: 8px; }
  .sgr-filter { flex: 1 1 150px; }
  .sgr-f-period { flex-basis: 100%; }
  .sgr-filter select, .sgr-f-year select, .sgr-f-room select, .sgr-f-period select { width: 100%; }
  .sgr-pane { padding: 12px; }
  .sgr-keys { display: none; }
  .sgr-mx .sgr-name { min-width: 120px; max-width: 140px; padding: 0 6px; }
  .sgr-mx .sgr-sj { width: 50px; min-width: 50px; }
  .sgr-mx .sgr-nt { min-width: 140px; }
  .sgr-clist { max-height: none; }
  /* ปุ่มบันทึกติดล่างจอ เหนือแถบปุ่มลัด */
  .sgr-foot { position: sticky; bottom: calc(56px + env(safe-area-inset-bottom)); z-index: 4; margin: 0 -12px -12px; padding: 8px 12px 12px; box-shadow: 0 -6px 12px -8px rgba(0,0,0,.25); }
  .sgr-save { flex: 1 1 auto; min-width: 0; }
  .sgr-2col { grid-template-columns: minmax(0, 1fr); }
  .sgr-srow { grid-template-columns: 24px minmax(0, 1fr) auto; }
  .sgr-srow .sgr-sbtns { grid-column: 2 / -1; justify-content: flex-end; }
}

/* =====================================================================
   พิมพ์ใบคะแนน: html[data-print="score"] → A4 แนวตั้ง ขาวดำ (แบบระบบเดิมของโรงเรียน)
   ===================================================================== */
@page sgr { size: A4 portrait; margin: 10mm; }
@media print {
  html[data-print="score"]:has(.sgr-print), html[data-print="score"]:has(.sgr-print) body {
    margin: 0 !important; padding: 0 !important; height: auto !important; overflow: visible !important;
    background: #fff !important; color: #000 !important; page: sgr;
  }
  html[data-print="score"]:has(.sgr-print) body *:not(:has(.sgr-print)):not(.sgr-print):not(.sgr-print *) { display: none !important; }
  html[data-print="score"]:has(.sgr-print) body *:has(.sgr-print) {
    display: block !important; position: static !important; margin: 0 !important; padding: 0 !important; border: 0 !important;
    width: auto !important; max-width: none !important; height: auto !important; min-height: 0 !important; overflow: visible !important;
    background: none !important; box-shadow: none !important; transform: none !important;
  }
  html[data-print="score"] .sgr-print, html[data-print="score"] .sgr-print * { visibility: visible !important; }
  html[data-print="score"] .sgr-print { display: block !important; }
}

/* โครงใบคะแนน (ใช้ตอนพิมพ์ และในไฟล์ตัวอย่าง) */
.sgr-print {
  --sgr-fs: 9pt; --sgr-sw: 8mm; --sgr-nw: 21mm; --sgr-hh: 24mm; --sgr-rh: 5mm;
  color: #000; background: #fff; font-size: var(--sgr-fs); line-height: 1.25;
  -webkit-print-color-adjust: exact; print-color-adjust: exact;
}
.sgr-print.sgr-n-s { --sgr-fs: 10pt; --sgr-sw: 10mm; --sgr-nw: 28mm; --sgr-hh: 27mm; --sgr-rh: 5.4mm; }
.sgr-print.sgr-n-m { --sgr-fs: 9pt; --sgr-sw: 8mm; --sgr-nw: 21mm; --sgr-hh: 26mm; --sgr-rh: 5mm; }
.sgr-print.sgr-n-l { --sgr-fs: 8pt; --sgr-sw: 6.8mm; --sgr-nw: 16mm; --sgr-hh: 25mm; --sgr-rh: 4.6mm; }
.sgr-print.sgr-n-xl { --sgr-fs: 7pt; --sgr-sw: 5.4mm; --sgr-nw: 12mm; --sgr-hh: 27mm; --sgr-rh: 4.2mm; }
/* มีคอลัมน์ระดับ: บีบช่องวิชา/หมายเหตุ ให้ชื่อยังกว้างพอบน A4 แนวตั้ง */
.sgr-print.sgr-has-band.sgr-n-s { --sgr-sw: 9mm; --sgr-nw: 26mm; }
.sgr-print.sgr-has-band.sgr-n-m { --sgr-sw: 7mm; --sgr-nw: 21mm; }
.sgr-print.sgr-has-band.sgr-n-l { --sgr-sw: 6mm; --sgr-nw: 15mm; }
.sgr-print.sgr-has-band.sgr-n-xl { --sgr-sw: 5mm; --sgr-nw: 10mm; }
.sgr-p-head { position: relative; min-height: 20mm; text-align: center; }
.sgr-p-logo { position: absolute; left: 0; top: 0; width: 20mm; height: 20mm; object-fit: contain; }
.sgr-p-nation { display: flex; flex-direction: column; gap: 1mm; padding: 1mm 22mm 0; font-size: 10.5pt; }
.sgr-p-title { margin: 3mm 0 2mm; font-size: 12.5pt; font-weight: 700; text-align: center; text-decoration: underline; text-underline-offset: 1mm; }
.sgr-p-info { display: flex; justify-content: center; flex-wrap: wrap; gap: 1mm 9mm; margin: 0 0 2.5mm; font-size: 10pt; }
.sgr-p-info b { font-weight: 700; margin-right: 1.5mm; }
.sgr-p-table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.sgr-p-table th, .sgr-p-table td { border: 1px solid #000; padding: .3mm .8mm; vertical-align: middle; line-height: 1.15; }
.sgr-p-table thead { display: table-header-group; }
.sgr-p-table thead th { font-weight: 700; text-align: center; background: #fff; }
.sgr-p-table tr { break-inside: avoid; page-break-inside: avoid; }
.sgr-p-table td { height: var(--sgr-rh); }
.sgr-p-no { width: 9mm; text-align: center; }
.sgr-p-table thead .sgr-p-no, .sgr-p-table thead .sgr-p-rank { padding: 0; font-size: .85em; white-space: nowrap; }
.sgr-p-table td.sgr-p-name { white-space: nowrap; overflow: hidden; text-overflow: clip; }
.sgr-p-subj { width: var(--sgr-sw); text-align: center; }
.sgr-p-num { width: 10mm; text-align: center; }
.sgr-p-rank { width: 11mm; text-align: center; }
.sgr-p-note { width: var(--sgr-nw); }
.sgr-p-table td.sgr-p-note { font-size: .85em; overflow-wrap: anywhere; }
.sgr-p-table td.sgr-p-subj, .sgr-p-table td.sgr-p-num, .sgr-p-table td.sgr-p-rank { padding-left: 0; padding-right: 0; }
.sgr-p-table thead .sgr-p-subj, .sgr-p-table thead .sgr-p-num { height: var(--sgr-hh); padding: 1mm 0; vertical-align: bottom; }
.sgr-p-vt {
  display: inline-block; writing-mode: vertical-rl; transform: rotate(180deg); max-height: var(--sgr-hh);
  font-weight: 700; line-height: 1.1; text-align: left; white-space: normal; overflow-wrap: anywhere;
}
.sgr-print .num { font-variant-numeric: tabular-nums; }
.sgr-p-table thead .sgr-p-num .sgr-p-vt, .sgr-p-table thead .sgr-p-note { font-size: .92em; }
.sgr-p-legend { display: flex; flex-wrap: wrap; gap: .5mm 6mm; margin: 1.5mm 0 0; font-size: 8pt; }
.sgr-p-table .sgr-p-bandc { width: 12mm; font-size: .9em; overflow-wrap: anywhere; }
.sgr-p-sign { display: grid; grid-template-columns: 1fr 1fr; gap: 10mm; margin-top: 4mm; text-align: center; break-inside: avoid; page-break-inside: avoid; }
.sgr-p-signbox { display: flex; flex-direction: column; align-items: center; gap: 1mm; min-height: 22mm; }
.sgr-p-date { font-size: .95em; }
.sgr-p-signbox strong { font-size: 10pt; }